Q22 of 31 Page 232

ABDE is a parallelogram. F is midpoint of side ED. If area of triangular region ABD is 20 sq. unit, then let us write how much area of triangular region AEF is.


As the triangle ABD is forms by diagonal of parallelogram ABDE


Triangle ABD = triangle AED = 20 sq. unit


As F is midpoint of ED


AF is median of triangle AED


Triangle AEF = triangle AFD = × triangle AED


Triangle AEF = triangle AFD = × 20 sq. unit


Triangle AEF = 10 sq. unit


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